Results 61 to 70 of about 578,037 (201)
Radiofrequency pulse design using nonlinear gradient magnetic fields [PDF]
Magnetic Resonance in Medicine, 2014 PurposeAn iterative k‐space trajectory and radiofrequency (RF) pulse design method is proposed for excitation using nonlinear gradient magnetic fields.Theory and MethodsThe spatial encoding functions (SEFs) generated by nonlinear gradient fields are linearly dependent in Cartesian coordinates. Left uncorrected, this may lead to flip angle variations in
Emre, Kopanoglu, R Todd, Constable
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FARADAY MAGNETOMETER WITH SHERIC POLE PIECES: IDENTIFICATION ZONE WITH A STABLE FORCE FACTOR
Российский технологический журнал, 2017 Basic principles and approaches in generation of devices for realization Faraday method are evaluated (for learning magnetic susceptibility of samples). It is noticed that problem exists - it is difficult to identify an operating area to coordinate here ...
A. V. Sandulyak +4 more
doaj +1 more source
Alignment of the scalar gradient in evolving magnetic fields
, 2014 We conduct simulations of turbulent mixing in the presence of a magnetic field, grown by the small-scale dynamo. We show that the scalar gradient field, $\nabla C$, which must be large for diffusion to operate, is strongly biased perpendicular to the ...
Pan, Liubin +2 more
core +1 more source
Magnetic Field Gradient Sensor Using Liquids.
Journal of the Magnetics Society of Japan, 1999 A method was investigated for measuring the value of B·dB/dx, which determines the magnetic force exerted on paramagnetic or diamagnetic substances. For this purpose, the change in the surface shape of fluids under inhomogeneous fields due to a phenomenon called the Moses effect, was used.
J. Nakagawa +3 more
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VELOCITY GRADIENTS AS A TRACER FOR MAGNETIC FIELDS [PDF]
The Astrophysical Journal, 2017 Strong Alfv nic turbulence develops eddy-like motions perpendicular to the local direction of magnetic fields. This local alignment induces velocity gradients perpendicular to the local direction of the magnetic field. We use this fact to propose a new technique of studying the direction of magnetic fields from observations, the Velocity Gradient ...
González-Casanova, Diego F. +1 more
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Single-spin scanning magnetic microscopy with radial basis function reconstruction algorithm
, 2020 Exotic magnetic structures, such as magnetic skyrmions and domain walls, are becoming more important in nitrogen-vacancy center scanning magnetometry. However, a systematic imaging approach to mapping stray fields with fluctuation of several milliteslas ...
Ding, Bei +9 more
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Production of Neutral Fermion in Linear Magnetic Field through Pauli Interaction
, 2006 We calculate the production rate of neutral fermions in linear magnetic fields through the Pauli interaction. It is found that the production rate is exponentially decreasing function with respect to the inverse of the magnetic field gradient, which ...
A. K. Harding +6 more
core +1 more source
A planar ion trap chip with integrated structures for an adjustable magnetic field gradient
, 2013 We present the design, fabrication, and characterization of a segmented surface ion trap with integrated current carrying structures. The latter produce a spatially varying magnetic field necessary for magnetic gradient induced coupling between ionic ...
Baggash, M. A. +6 more
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Classical Limit of Demagnetization in a Field Gradient
, 2002 We calculate the rate of decrease of the expectation value of the transverse component of spin for spin-1/2 particles in a magnetic field with a spatial gradient, to determine the conditions under which a previous classical description is valid.
A. Sodickson +16 more
core +2 more sources
Generation of entangled photons by trapped ions in microcavities under a magnetic field gradient
, 2005 We propose a potential scheme to generate entangled photons by manipulating trapped ions embedded in two-mode microcavities, respectively, assisted by a magnetic field gradient.
C. Wunderlich +6 more
core +1 more source